The design includes power source, AD and DA conversion, output module of current-source, demonstration and control module.
设计分电源，AD和DA转换，电流源输出，显示和控制模块。
The output of the machine connect DAC0832 to carry on a DA conversion, again pass operation amplifier to put an end exportation wave-form.
在单片机的输出端口接DAC0832进行DA转换，再通过运放进行波形调整，最后输出波形接在示波器上显示。
DAC7 is adopted as a DA conversion.
DAC7是通过作为一个大的转换。
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